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Finding the Third Proportional to 627,652 and 1,381,988

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Solution

The third proportional to 627,652 and 1,381,988 is: 3,042,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,652 : 1,381,988 = 1,381,988 : x
  2. Step 2: Convert to fraction form
    627,652/1,381,988 = 1,381,988/x
  3. Step 3: Cross multiply
    627,652x = 1,381,988 × 1,381,988
  4. Step 4: Simplify right side
    627,652x = 1,909,890,832,144
  5. Step 5: Solve for x
    x = 1,909,890,832,144/627,652
  6. Step 6: Final answer
    x = 3,042,913.64

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.